Mercurial > sdl-ios-xcode

annotate include/SDL_mouse.h @ 3846:66fb40445587 SDL-ryan-multiple-audio-device

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Removed distinction between "available" and "init" in audio backends, since both had to be checked for success as a pair at the higher level and several of the Available methods were just always-succeed placeholders anyhow. Now the availability check is done in the init code, and the higher level tries all possible drivers until one manages to initialize successfully.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 17 Oct 2006 09:09:21 +0000
parents c121d94672cb
children 313112f9ac5c
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /**
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24 * \file SDL_mouse.h
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25 *
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26 * Include file for SDL mouse event handling
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27 */
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28
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29 #ifndef _SDL_mouse_h
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30 #define _SDL_mouse_h
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31
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32 #include "SDL_stdinc.h"
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33 #include "SDL_error.h"
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34 #include "SDL_video.h"
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35
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36 #include "begin_code.h"
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37 /* Set up for C function definitions, even when using C++ */
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38 #ifdef __cplusplus
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39 /* *INDENT-OFF* */
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40 extern "C" {
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41 /* *INDENT-ON* */
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42 #endif
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43
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44 typedef struct SDL_Cursor SDL_Cursor; /* Implementation dependent */
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45
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46 /* Function prototypes */
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47
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48 /**
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49 * \fn int SDL_GetNumMice(void)
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50 *
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51 * \brief Get the number of mouse input devices available.
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52 *
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53 * \sa SDL_SelectMouse()
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54 */
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55 extern DECLSPEC int SDLCALL SDL_GetNumMice(void);
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56
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57 /**
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58 * \fn int SDL_SelectMouse(int index)
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59 *
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60 * \brief Set the index of the currently selected mouse.
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61 *
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62 * \return The index of the previously selected mouse.
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63 *
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64 * \note You can query the currently selected mouse by passing an index of -1.
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65 *
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66 * \sa SDL_GetNumMice()
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67 */
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68 extern DECLSPEC int SDLCALL SDL_SelectMouse(int index);
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69
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70 /**
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71 * \fn SDL_WindowID SDL_GetMouseFocusWindow(void)
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72 *
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73 * \brief Get the window which currently has focus for the currently selected mouse.
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74 */
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75 extern DECLSPEC SDL_WindowID SDLCALL SDL_GetMouseFocusWindow(void);
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76
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77 /**
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78 * \fn int SDL_SetRelativeMouseMode(SDL_bool enabled)
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79 *
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80 * \brief Set relative mouse mode for the currently selected mouse.
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81 *
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82 * \param enabled Whether or not to enable relative mode
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83 *
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84 * \return 0 on success, or -1 if relative mode is not supported.
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85 *
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86 * While the mouse is in relative mode, the cursor is hidden, and the
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87 * driver will try to report continuous motion in the current window.
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88 * Only relative motion events will be delivered, the mouse position
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89 * will not change.
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90 *
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91 * \note This function will flush any pending mouse motion.
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92 *
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93 * \sa SDL_GetRelativeMouseMode()
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94 */
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95 extern DECLSPEC int SDLCALL SDL_SetRelativeMouseMode(SDL_bool enabled);
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96
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97 /**
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98 * \fn SDL_bool SDL_GetRelativeMouseMode()
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99 *
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100 * \brief Query whether relative mouse mode is enabled for the currently selected mouse.
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101 *
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102 * \sa SDL_SetRelativeMouseMode()
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103 */
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104 extern DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode();
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105
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106 /**
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107 * \fn Uint8 SDL_GetMouseState(int *x, int *y)
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108 *
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109 * \brief Retrieve the current state of the currently selected mouse.
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110 *
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111 * The current button state is returned as a button bitmask, which can
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112 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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113 * mouse cursor position relative to the focus window for the currently
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114 * selected mouse. You can pass NULL for either x or y.
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115 */
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116 extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y);
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117
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118 /**
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119 * \fn Uint8 SDL_GetRelativeMouseState(int *x, int *y)
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120 *
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121 * \brief Retrieve the state of the currently selected mouse.
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122 *
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123 * The current button state is returned as a button bitmask, which can
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124 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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125 * mouse deltas since the last call to SDL_GetRelativeMouseState().
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126 */
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127 extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
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128
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129 /**
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130 * \fn void SDL_WarpMouseInWindow(SDL_WindowID windowID, int x, int y)
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131 *
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132 * \brief Moves the currently selected mouse to the given position within the window.
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133 *
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134 * \param windowID The window to move the mouse into, or 0 for the current mouse focus
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135 * \param x The x coordinate within the window
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136 * \param y The y coordinate within the window
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137 *
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138 * \note This function generates a mouse motion event
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139 */
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140 extern DECLSPEC void SDLCALL SDL_WarpMouseInWindow(SDL_WindowID windowID,
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141 int x, int y);
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142
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143 /**
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144 * \fn SDL_Cursor *SDL_CreateCursor (const Uint8 * data, const Uint8 * mask, int w, int h, int hot_x, int hot_y)
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145 *
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146 * \brief Create a cursor for the currently selected mouse, using the
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147 * specified bitmap data and mask (in MSB format).
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148 *
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149 * The cursor width must be a multiple of 8 bits.
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150 *
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151 * The cursor is created in black and white according to the following:
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152 * data mask resulting pixel on screen
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153 * 0 1 White
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154 * 1 1 Black
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155 * 0 0 Transparent
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156 * 1 0 Inverted color if possible, black if not.
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157 *
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158 * \sa SDL_FreeCursor()
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159 */
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160 extern DECLSPEC SDL_Cursor *SDLCALL SDL_CreateCursor(const Uint8 * data,
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161 const Uint8 * mask,
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162 int w, int h, int hot_x,
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163 int hot_y);
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164
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165 /**
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166 * \fn void SDL_SetCursor(SDL_Cursor * cursor)
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167 *
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168 * \brief Set the active cursor for the currently selected mouse.
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169 *
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170 * \note The cursor must have been created for the selected mouse.
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171 */
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172 extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor * cursor);
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173
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174 /**
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175 * \fn SDL_Cursor *SDL_GetCursor(void)
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176 *
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177 * \brief Return the active cursor for the currently selected mouse.
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178 */
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179 extern DECLSPEC SDL_Cursor *SDLCALL SDL_GetCursor(void);
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180
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181 /**
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182 * \fn void SDL_FreeCursor(SDL_Cursor * cursor)
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183 *
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184 * \brief Frees a cursor created with SDL_CreateCursor().
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185 *
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186 * \sa SDL_CreateCursor()
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187 */
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188 extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor * cursor);
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189
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190 /**
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191 * \fn int SDL_ShowCursor(int toggle)
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192 *
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193 * \brief Toggle whether or not the cursor is shown for the currently selected mouse.
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194 *
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195 * \param toggle 1 to show the cursor, 0 to hide it, -1 to query the current state.
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196 *
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197 * \return 1 if the cursor is shown, or 0 if the cursor is hidden.
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198 */
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199 extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
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200
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201 /* Used as a mask when testing buttons in buttonstate
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202 Button 1: Left mouse button
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203 Button 2: Middle mouse button
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204 Button 3: Right mouse button
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205 */
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206 #define SDL_BUTTON(X) (1 << ((X)-1))
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207 #define SDL_BUTTON_LEFT 1
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208 #define SDL_BUTTON_MIDDLE 2
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209 #define SDL_BUTTON_RIGHT 3
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210 #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
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211 #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
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212 #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
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213
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214
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215 /* Ends C function definitions when using C++ */
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216 #ifdef __cplusplus
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217 /* *INDENT-OFF* */
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218 }
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219 /* *INDENT-ON* */
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220 #endif
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221 #include "close_code.h"
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222
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223 #endif /* _SDL_mouse_h */
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224
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225 /* vi: set ts=4 sw=4 expandtab: */